Roundcube is a web-based IMAP email client with a very intuitive and modern user interface written in PHP. To use Roundcube you only need a Web browser. RoundCube includes all the features which you need in an email client such as richtext/HTML message composing, address book, support for MIME/HTML emails, multiple sender identities, spell checking, three column View, drag & drop message management and more.

Verify your Roundcube Installation

Enable Roundcube plugins

Roundcube comes with a number of plugins which are disabled by default. In this guide we will enable password and managesieve plugins. This plugins will allow users to create sieve filters and change their passwords from within the Roundcube interface.

Do not forget to enter PostfixAdmin database credentials in the password_db_dsn line.

Conclusion

This tutorial showed you how to install and configure Roundcube Webmail on your Ubuntu system , as well as how to install and enable Roundcube plugins in order to add additional functionalities such as sieve filters.

This is the last post of this series. If you have any questions feel free to leave a comment.